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resources
index.zul
zul
<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit" arg0="./win"?> <zk> <window use="pkg$.TestWindow" border="normal" id="win" title="hello"> <div>Welcome to ZK Fiddle , run it right now!</div> <hlayout> <datebox id="test" onChange="win.setDataChanged(true)" constraint="${win.con}" value="@{win.date, converter=pkg$.DateTimeConverter}" /></hlayout> </window> </zk>
BasicConstraint.java
java
import java.util.regex.Matcher; import java.util.regex.Pattern; import org.zkoss.zk.ui.Component; import org.zkoss.zk.ui.WrongValueException; import org.zkoss.zk.ui.api.HtmlBasedComponent; import org.zkoss.zul.CustomConstraint; import org.zkoss.zul.Image; import org.zkoss.zul.Label; import org.zkoss.zul.Popup; import org.zkoss.zul.SimpleConstraint; import org.zkoss.zul.impl.InputElement; /** * Implementation of a basic constraint. Supports custom error messages and all functionality of ZK's SimpleConstraint. * Note: It is recommended to use a hlayout component as parent of the component using this constraint. * * <br><br> * <small><i> * Copyright (c) 2011, * doubleSlash Net-Business GmbH, http://www.doubleSlash.de * <br><br> * @version $Id: BasicConstraint.java 6202 2012-02-06 08:40:00Z kgloekler $ * <br> * @author
[email protected]
<br> * </i></small> */ public class BasicConstraint extends SimpleConstraint implements CustomConstraint { private static final long serialVersionUID = 7955951263005227367L; /** * Defines the path to the warning image */ public static final String IMAGE_PATH = "warning_message_orange.png"; private transient Matcher expressionToTest; private String expressionErrorMsg; /** * Constructor * * @param constraints comma-separated list of constraints */ public BasicConstraint(String constraints) { super(constraints); } /** * Constructor * * @param flags {@link SimpleConstraint} flags * @param errorMsg error message to display */ public BasicConstraint(int flags, String errorMsg) { super(flags, errorMsg); } /** * @see org.zkoss.zul.CustomConstraint#showCustomError(org.zkoss.zk.ui.Component, org.zkoss.zk.ui.WrongValueException) */ public void showCustomError(Component comp, WrongValueException ex) { Component parent = comp.getParent(); // try to find error message component for given component String errorId = comp.getUuid().concat("-errormsg"); HtmlBasedComponent errorComp = (HtmlBasedComponent)parent.getFellowIfAny(errorId); if (errorComp == null) { if (ex == null) { // no error message exists, so nothing to clear return; } // there is no error component yet, create a new one Image img = new Image(); img.setId(errorId); Popup popup = createToolTipPopup(comp, ex.getMessage()); popup.setParent(parent); img.setTooltip(popup); img.setSrc("/img/email.png"); // add error message component Component nextSibling = comp.getNextSibling(); parent.insertBefore(img, nextSibling); // mark invalid component orange InputElement inputElement = (InputElement)parent.getFirstChild(); inputElement.setSclass("invalidOrange"); } else { // method is called with ex = null to clear error message if (ex == null) { errorComp.setVisible(false); } else { Label label = (Label)errorComp.getFellow("errorLabel" + comp.getUuid()); label.setValue(ex.getMessage()); errorComp.setVisible(true); } } } /** * Creates the tooltip popup * * @param comp the component which should show the custom error message * @param message the message to show in tooltiptext * * @return the tooltip popup */ protected Popup createToolTipPopup(Component comp, String message) { Popup popup = new Popup(); popup.setSclass("ds-error"); Image popupImg = new Image(); // PE-929 if label exists recycle it to prevent duplicates Label label; Label oldLabel = (Label)comp.getParent().getFellowIfAny("errorLabel" + comp.getUuid()); if (oldLabel != null) { label = oldLabel; } else { label = new Label(); label.setId("errorLabel" + comp.getUuid()); } label.setValue(message); label.setStyle("padding-left:10px;"); popup.appendChild(popupImg); popup.appendChild(label); return popup; } /** * @see org.zkoss.zul.SimpleConstraint#validate(org.zkoss.zk.ui.Component, java.lang.Object) */ @Override public void validate(Component comp, Object value) { if (value != null && value instanceof String) { String v = ((String)value).trim(); super.validate(comp, v); if (expressionToTest != null) { if (!expressionToTest.reset(v).matches()) { throw new WrongValueException(comp, expressionErrorMsg); } } } else { super.validate(comp, value); } } /** * Sets the expressionToTest. * * @param expressionToTest the expression to test (may be null if no expression should be tested) * @param errorMsg the message to display if the test fails */ public void setExpressionToTest(String expressionToTest, String errorMsg) { this.expressionToTest = Pattern.compile(expressionToTest).matcher(""); this.expressionErrorMsg = errorMsg; } }
TestWindow.java
java
import org.zkoss.zk.ui.*; import org.zkoss.zk.ui.event.*; import org.zkoss.zk.ui.util.*; import org.zkoss.zk.ui.ext.*; import org.zkoss.zk.au.*; import org.zkoss.zk.au.out.*; import org.zkoss.zul.*; import java.util.Date; public class TestWindow extends Window implements AfterCompose{ public void afterCompose() { } private Date date = new Date(); public Date getDate() { return date; } public void setDate(Date date) { this.date=date; } public Constraint getCon() { return new BasicConstraint(BasicConstraint.NO_EMPTY, "testerr"); } public void setDataChanged(boolean dataChanged) { this.dataChanged = dataChanged; } private boolean dataChanged; }
DateTimeConverter.java
java
import java.util.Calendar; import java.util.Date; import org.zkoss.zkplus.databind.TypeConverter; import org.zkoss.zul.Datebox; import org.zkoss.zul.api.Timebox; /** * Taken from the zk forum: * http://www.zkoss.org/forum/listComment/2260 * * <br><br> * <small><i> * Copyright (c) 2009, * doubleSlash Net-Business GmbH, http://www.doubleSlash.de * <br><br> * @version $Id: DateTimeConverter.java 6016 2011-10-26 11:18:46Z jkreutzfeld $ * <br> * @author
[email protected]
<br> * </i></small> */ public class DateTimeConverter implements TypeConverter { /** * @see org.zkoss.zkplus.databind.TypeConverter#coerceToBean(java.lang.Object, org.zkoss.zk.ui.Component) */ public Object coerceToBean(java.lang.Object val, org.zkoss.zk.ui.Component comp) { if (val == null) { return val; } Calendar fullDate = Calendar.getInstance(); Calendar date = Calendar.getInstance(); date.setTime((Date)val); if (comp.getAttribute("fullDate") != null) { fullDate.setTime((Date)comp.getAttribute("fullDate")); if (comp instanceof Timebox) { date.set(Calendar.YEAR, fullDate.get(Calendar.YEAR)); date.set(Calendar.MONTH, fullDate.get(Calendar.MONTH)); date.set(Calendar.DATE, fullDate.get(Calendar.DATE)); } else if (comp instanceof Datebox) { date.set(Calendar.HOUR_OF_DAY, fullDate.get(Calendar.HOUR_OF_DAY)); date.set(Calendar.MINUTE, fullDate.get(Calendar.MINUTE)); } } return date.getTime(); } /** * @see org.zkoss.zkplus.databind.TypeConverter#coerceToUi(java.lang.Object, org.zkoss.zk.ui.Component) */ public Object coerceToUi(java.lang.Object val, org.zkoss.zk.ui.Component comp) { // we need the original date comp.setAttribute("fullDate", val); return val; } }
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